Paper 2 - Psychology

Evolutionary explanations for partner preferences. 

Sexual Selection: This explains the evolution of characteristics that confer a reproductive advantage as to a survivial advatnage. 

Intrasexual selection: Individuals of one sex must outcompete other members of their sex in order to mate and pass on their genes. Characteristics that lead to that reproductive success (e.g stress,intelligence) become more widespread in gene pools becuase of the reproductive advantage to the winners. 

Intersexual selection: Members of one sex evolve preferences for desirable qualitites in potential mates. That members of the opposite sex who possess these certain characteristics (e.g looks, status, personality.) gain a mating advantage over those who do not. 

Sexual Selection and long-term mate preferences. 

- Low-Quality mates (unattractive, unhealthy) more likely to produce unattractive and unhealthy offspring. Where as a high-quality mates will lead to higher quality offspring and an individual's genes more likely to be passed on. 

> so for females this means this means that they are attracted to males who are able to provide for them, and show promise to be a…